function changeAuthCode() {
		$("#image").attr("src","validate_code_change.php");
	}
	
	function checkSubmit(){
		admin_pwd=hex_md5($("#admin_pwd").val());
		vdcode=$("#vdcode").val().toLowerCase();
		admin_pwd_vdcode=hex_md5(admin_pwd+vdcode);
		$("#admin_pwd").val(admin_pwd_vdcode);
	}
